Consider removing SingleChildScrollView

[Dreamersoul]

Describe the bug
when SingleChildScrollView and the messages less then the viewport, getting the keyboard on and scrolling places the input under the keyboard,
also when it is present and the keyboard is open the user cannot see the last message on top and the view earlier messages widget doesn't shoe

To Reproduce
Steps to reproduce the behavior:

1. Go to 'chat_view'
2. Click on 'textfield'
3. Scroll up to the last message
4. See error

Expected behavior
the last message should appear
Screenshots
If applicable, add screenshots to help explain your problem.
what happens:

what should happen:

Desktop (please complete the following information):

• OS: Windows
• Device: Emulator
• Flutter Version: 1.12.13+hotfix.8
• Dart Version: 2.7.0
• Version 1.0.16

[fayeed]

Yeah, I have been thinking about removing for a time now, I see that you have created a PR I will take a look and merge it.